Although there are many smart devices and networked embedded object applications using World Wide Web technologies, it is still a big step to go towards a true Web of Things. It is e.g. difficult to build ubiquitous WoT applications that work in and accross multiple environments. Approaches which aggregate WoT ressources by centralizing all the resource information, have problems: total dependency on external infrasture, lack of private WoT management, inflexible communication patterns and limited dynamic ressource discovery and mapping. To solve these problems, we propose uBox, a local WoT platform which can be a stand-alone server to make your WoT environment, with interfaces to connect the other local WoT platforms. This way, which we call uBoXing, we can create World Wide WoT platform with a distributed architecture. This paper describes the concept of a distributed resource management architecture, and how we implement the concept into software. Also, we will discuss the platform with the example application in SmartTecO environment.
This paper focuses on a sensor network virtualization over multidomain sensor network and proposes an abstraction called “logical sensor network (LSN)” for sensor data processing.
In the proposed abstraction, processing is a directed acyclic graph that consists of nodes and streams, which represents a small data processor and communication rules between them, respectively. We have added a notion of a trigger to this graph. A trigger represents a timing of the process execution. We have implemented the middleware named LSN-Middle to run a virtualized sensor network and proved its feasibility.
This paper presents an energy-saving concept for home/office environments, which proposes to design a multi-layered architecture for an automatic monitoring and control. Based on wireless sensor networks and a context awareness system, the acquired data will be interpreted into different energyrelated contextual information. A correlation module using Hidden Markov Models could then give the actuation module a certain context, which allows managing and saving the energy consumption of home/office appliances.
We present a framework for overlay sensor network, which creates virtual sensors and their networks over a physical sensor network. This framework targets a sensor network under a smart space, that is the space with many different types of sensor-related applications running. This work enables a such physical sensor network to cope with various requirements that the applications request.
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